If you had a jailbroken phone and installed SBSettings you could turn that feature on. Then when you backup your phone in iTunes that feature is saved. When you restore to that backup that feature carries forward whether jailbroken or not. Love it.Reply

There's a way to do it without jailbreaking in addition to the method with SBSettings down below.

1. Launch FieldTest.app by going into the dialer and dialing *3001#12345#*2. Hold down standby/lock like you’re going to turn the phone off3. Release standby/lock after the power off slider appears, then hold home (this is force quit on iOS – it’s impressive so few people know it)4. Boom, you have numerics instead of bars

So you can either tap on the bars/numeric and switch inbetween, or if you want numerics to go away entirely (revert to normal) launch field test again, then quit normally. This restores the plist file setting.

Fewer, not none. And even then, it'll largely only have an impact on the parts of the code base related to hardware+software interaction (such as the drivers, and the things sensitive to the results of the drivers). Most of the issues sound like they're completely unrelated to that sort of thing (the WiFi thing being a likely exception... the iPhone 5 updating issue may or may not be, likely not, but I can't make a very good guess in this case).

And of course, you have to prioritize bugs. Some bugs aren't worth pushing back the release date over. It might seem noble to 'fix all bugs before you release', but the only way you can do that and release software of any complexity is to do crappy testing... if you try to do that and do even half way decent testing, you'll never release the software, as new bugs will be discovered (fixes to existing bugs will occasionally cause other bugs to become visible, or even cause bugs). Considering this is a x.0 release, the number of bugs seems quite small (I've not encountered any of the bugs fixed, although there's a couple very minor issues with the totally new App Store app I've ran into).Reply

You could back up your SHSH blobs with redsn0w (you don't actually have to jailbreak, but you need SHSH blobs to downgrade), then try iOS 6 for yourself. Then downgrade if it doesn't work out. I think the downgrade process can get a bit complex, so you might want to look it up and see if you're willing to go through with it.Reply

This seems to have resolved some fairly serious FaceTime connection issues I've had since upgrading from 4S to 5. Also, with this update SpeedTest on the 5 can saturate my 35 Mbit symmetrical FiOS connection over WiFi (with 6.0 it topped out in the mid 20s).Reply